How to determine the frequency of a Wi-Fi router: 2.4 GHz or 5 GHz - all working methods

Have you noticed that some devices on your network are working faster than others, while your old laptop can't see the new access point at all? The reason may be Wi-Fi frequency, which the router broadcasts on. Modern routers support two ranges: 2.4 GHz And 5 GHz, but not all gadgets can work with both. For example, smart light bulbs or budget smartphones often don't recognize the 5 GHz network, while game consoles or 4K TVs, on the contrary, require it for stable operation.

In this article we will look at 5 reliable waysHow to determine your router's Wi-Fi frequency—from viewing settings via the web interface to analyzing the network using specialized apps. You'll also learn why it's important to separate networks by frequency, how this affects speed and coverage, and what to do if your device can't detect one of the frequencies. We'll pay special attention to hidden networks and routers with automatic band steering—their settings often mislead users.

1. Checking the frequency via the router's web interface

The most reliable way is to log into your router's control panel. You don't need to be an IT specialist to do this: all you need is the router's IP address and login information (usually found on a sticker on the device).

Step-by-step instructions:

1. Find out your router's IP addressMost often it is 192.168.0.1 or 192.168.1.1If these addresses are not suitable, check the IP in the connection properties on the computer (in Windows: Start → Settings → Network & Internet → Wi-Fi → Hardware properties).
2. Enter your IP address into your browser's address bar. A login window will open.
3. Enter your login and password (usually by default admin/admin or admin/password).
4. Go to the wireless network section. The name may vary:
   • 📡 TP-Link: Wireless → Wireless Settings
   • 📡 ASUS: Wireless Network → General
   • 📡 Keenetic: Wi-Fi → Hotspot
   • 📡 MikroTik: Wireless → Interfaces

Find the parameter Band (Range) or Wireless Mode. It will be indicated there 2.4 GHz, 5 GHz or 2.4 GHz + 5 GHz (if the router broadcasts on two frequencies simultaneously).

If it is specified in the settings Auto or 2.4G/5G, this means that the router uses technology Band Steering — automatically distributes devices by frequency. In this case, the following method will help determine the current frequency of a specific connection.

⚠️ Attention: On some routers (for example, Xiaomi Mi Router or Tenda) frequency settings may be hidden in "advanced mode." If you can't find the setting Band, look for the switch Advanced Settings or Expert Mode.

2. Network analysis via mobile applications

If you don't want to mess with your router settings (or don't have access), you can use mobile utilities. They show not only the frequency but also other useful parameters, such as signal strength, channel occupancy, and connection speed.

Top 3 apps for Android and iOS:

• 📱 WiFi Analyzer (Android) - Free, shows the band (2.4/5 GHz), channel occupancy, and recommended settings. Tab Channel Graph visualizes networks by frequencies.
• 📱 NetSpot (Android/iOS) — the paid version allows you to create heat maps of coverage, but the free functionality is sufficient for frequency determination.
• 📱 Fing (Android/iOS) — Scans the network and displays access point specifications, including range. Useful if your router hides the SSID.

How to use (using example) WiFi Analyzer):

1. Install the application and open it.
2. Go to the tab Channel Graph or AP List.
3. Find your network in the list (by name) SSID).
4. Pay attention to the column Band or Frequency. It will be indicated there 2.4 GHz or 5 GHz.

If your network is displayed in both ranges, then the router is broadcasting simultaneously on 2.4 and 5 GHz (mode Dual Band). To find out what frequency a particular device is connected to, use the method in the next section.

3. Determining the frequency through the operating system

Windows, macOS, and even Linux can display technical information about a Wi-Fi connection, including its range. Let's look at step-by-step instructions for each operating system.

🖥️ Windows 10/11

Method 1 (via command line):

1. Click Win + R, enter cmd and press Enter.
2. Enter the command:

   netsh wlan show interfaces

3. Find the line Radio type (Radio type). It will indicate:
   • 802.11n or 802.11g — network on 2.4 GHz;
   • 802.11ac or 802.11ax — network on 5 GHz.

Method 2 (via system parameters):

1. Open Settings → Network and Internet → Wi-Fi.
2. Click on the name of your network, then - Properties.
3. Scroll down to the block Properties. Parameter Protocol will indicate a range (eg Wi-Fi 5 (802.11ac) means 5 GHz).

🍎 macOS

To find out the frequency on a Mac:

1. Hold down the key Option (⌥) and click on the Wi-Fi icon in the menu bar.
2. Find the line in the drop-down list Channel (Channel).
3. If the channel number is from 1 to 14 - This 2.4 GHz. Channels 36–165 relate to 5 GHz.

🐧 Linux

In the terminal, run the command:

iwlist wlan0 frequency

Where wlan0 — the name of your Wi-Fi adapter (you can find it out using the command iwconfig). The output will contain a list of supported frequencies and the current one.

⚠️ Attention: On laptops with adapters Intel AX200/AX210 or Qualcomm Atheros may be displayed in Windows 802.11ax even at 2.4 GHz. This is normal—the standard. Wi-Fi 6 Works in both ranges. To determine the exact frequency, use the command line (method 1).

4. Checking through network marking (SSID)

Many routers create a default individual network names (SSIDs) for 2.4 and 5 GHz, adding suffixes like _2G, _5G or -Plus. For example:

• 🔄 MyWiFi_2.4G — 2.4 GHz network;
• 🔄 MyWiFi_5G — 5 GHz network;
• 🔄 Keenetic-1234 And Keenetic-1234-Plus — the second SSID usually corresponds to 5 GHz.

If your router is in the mode Smart Connect (or Band Steering), both networks may have the same name, and the router itself decides which frequency to connect the device to. In this case, only analysis through settings or third-party utilities (see sections 1–3) can help determine the range.

Some manufacturers use non-obvious designations:

If your router is not listed, check the sticker on the case or the documentation - it may indicate the logic for naming networks.

What should I do if the SSIDs are the same, but the router doesn't show the frequency?

If the router uses Band Steering and hides the division into ranges, try:

1. Temporarily disable 5 GHz in the router settings and check if the network remains accessible to the device.

2. Use the app WiFi Analyzer (see section 2) - it will show the actual range even with a common SSID.

3. Connect the device to the router via cable and access the web interface to see the list of connected clients and their ranges (if the router supports this function).

5. Checking the device's compatibility with frequencies

Sometimes the problem isn't with the router, but with the device itself. For example, with older smartphones (iPhone 4S, Samsung Galaxy S3) or smart gadgets (lamps Yeelight, cameras Xiaomi) support only 2.4 GHzIf such a device "doesn't see" your network, most likely the router only broadcasts on 5 GHz.

How to check compatibility:

1. On your smartphone/tablet: Go to your Wi-Fi settings and see what networks are available. If you only see networks with suffixes _2G or _2.4G, your device does not support 5 GHz.
2. On the laptop: open device Manager (in Windows: Win + X → Device Manager), find the section Network adapters and check the Wi-Fi module model. Enter its name in a search engine—the specifications will indicate which bands it supports.
3. For smart gadgets: Check the instructions or the manufacturer's official website. For example, most devices Tuya Smart work only on 2.4 GHz.

If your device doesn't support 5 GHz and your router only broadcasts on this frequency, there are two solutions:

• 🔧 Turn on broadcasting on 2.4 GHz in the router settings (see section 1).
• 🔧 Buy Wi-Fi repeater (repeater) with 2.4 GHz support and connect the problematic device to it.

⚠️ Attention: Some routers (eg. Ubiquiti UniFi or MikroTik) disable 2.4 GHz broadcasting by default to save power. If your smart devices stop connecting after a firmware update, check this setting!

6. Using third-party PC utilities

For advanced users, there are specialized programs that display detailed information about Wi-Fi networks, including range, channel width, and even noise levels.

Top 3 utilities for Windows:

• 💻 inSSIDer — a professional tool for analyzing Wi-Fi networks. It displays the frequency, channel, standard (802.11n/ac), and even recommends optimal settings.
• 💻 Acrylic Wi-Fi — The free version allows you to scan networks and filter them by range. This is useful for finding neighbors that are causing interference.
• 💻 Wireshark — a powerful traffic analyzer. Requires some skill, but can show connection frequency in real time (filter: wlan.radio.channel).

Example of use inSSIDer:

1. Download and install the program (there is a portable version).
2. Start scanning (button Start).
3. In the list of networks, find yours by name (SSID).
4. Please note the columns:
   • 📶 Channel — channel number (1–14 = 2.4 GHz; 36–165 = 5 GHz);
   • 📶 Band — direct indication of the range;
   • 📶 Standard — Wi-Fi standard (for example, 802.11ac means 5 GHz).

These programs also help optimize your router settings. For example, if all your neighbors are using channel 6 on the 2.4 GHz band, it's best to switch to channel 1 or 11 to avoid interference.

Make sure the device is connected to the network

Check the SSID name for suffixes (_2G, _5G)

Go to the router's web interface and find the Band parameter.

Use a mobile app (WiFi Analyzer, Fing)

Check the device's compatibility with the bands

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7. Common Mistakes and Myths About Wi-Fi Frequencies

When working with Wi-Fi frequencies, users encounter misconceptions that prevent them from setting up their network correctly. Let's look at the most common ones:

Myth 1: "5 GHz is always faster than 2.4 GHz"

In fact maximum speed at 5 GHz higher (up to 1300 Mbps versus 600 Mbps at 2.4 GHz), but real speed depends on many factors:

• 📉 Distance to the router: 5 GHz is worse at passing through walls;
• 📉 Number of connected devices: 2.4 GHz copes better with a larger number of clients;
• 📉 Interference: 2.4 GHz has more “neighbors” (microwaves, Bluetooth devices).

Myth 2: "If a router is dual-band, it automatically selects the best frequency."

Technology Band Steering (in routers ASUS AiMesh, Netgear Orbi) should distribute devices across bands, but it often works incorrectly. For example, it can "stick" a smartphone to a congested 2.4 GHz network, even if 5 GHz is free. The solution is disable Band Steering and create separate SSIDs for each band.

Myth 3: "There is no interference on 5 GHz"

The 5 GHz band is less crowded, but there is still interference:

• 🛡️ Radars and weather stations (in some countries they use channels 52–144);
• 🛡️ Neighboring routers on the same channels;
• 🛡️ Devices operating at 5 GHz (e.g. wireless headphones) AirPods Pro).

To reduce interference, manually select a channel with minimal congestion (e.g. 149-165).

Myth 4: "All modern devices support 5 GHz."

Even new gadgets may not work with 5 GHz:

• 📱 Budget smartphones (for example, Redmi 9A, Samsung Galaxy M12);
• 💡 Smart devices (lamps, sockets, sensors);
• 🎮 Old gaming consoles (Nintendo Switch first revision, PS3).

FAQ: Frequently Asked Questions about Wi-Fi Frequencies

My router supports 5 GHz, but the network isn't showing up in the list. What's wrong?

Possible reasons:

• 🔌 5 GHz broadcasting is disabled in the router settings (check the parameter Enable 5GHz);
• 📵 Your device does not support 5 GHz (see section 5);
• 🔄 Mode enabled Band Steering, and the router hides a separate 5 GHz network (try disabling this mode);
• 📡 The 5 GHz channel is blocked in your country (try changing the channel to 36-48).

Which range is best for online gaming or 4K streaming?

For minimal delays (ping) and stable speed:

• 🎮 Games: 5 GHz (less interference, lower ping), but only if the router is nearby. If the signal is weak, 2.4 GHz is better;
• 📺 4K Streaming: 5 GHz (higher throughput), but make sure your device supports it 802.11ac or 802.11ax;
• 💻 Working with clouds: 5 GHz (faster file downloads/uploads).

For maximum stability, adjust Qos in the router to prioritize gaming or streaming traffic.

Is it possible to use 2.4 and 5 GHz at the same time on one router?

Yes, almost all modern routers support the mode Dual Band — simultaneous broadcasting on two frequencies. To do this:

1. Enable both networks in your router settings;
2. Set different names (SSIDs) for 2.4 and 5 GHz (for example, MyWiFi_2G And MyWiFi_5G);
3. Connect devices to the desired network manually.

If you turn it on Band Steering, the router will automatically distribute devices, but this may not work correctly (see myth 2 in section 7).

Why is the speed on 5 GHz lower than on 2.4 GHz?

Reasons for speed drop at 5 GHz:

• 📉 Weak signal: 5 GHz has poor signal penetration through walls. Check the signal strength in the app. WiFi Analyzer;
• 🔄 Suboptimal channel: use channels 36–48 or 149–165 (they are less crowded);
• 🖥️ Legacy device: If your laptop only supports 802.11n at 5 GHz, the speed will be lower than at 802.11ac;
• ⚙️ Incorrect router settings: channel width 20 MHz instead of 40/80 MHz limits speed.

Solution: Move the device closer to the router, change the channel to a less crowded one, and check the channel width in the settings.

Which Wi-Fi standard (802.11n/ac/ax) corresponds to 2.4 and 5 GHz?

Compliance with standards and ranges:

Standard	Ranges	Max. speed
802.11g	2.4 GHz only	54 Mbps
802.11n (Wi-Fi 4)	2.4 GHz and 5 GHz	600 Mbps
802.11ac (Wi-Fi 5)	5 GHz only	1300 Mbps
802.11ax (Wi-Fi 6)	2.4 GHz and 5 GHz	9600 Mbps

If the router settings indicate 802.11n/ac/ax, it supports both ranges. Unless 802.11ac — broadcasting is only on 5 GHz.